---

yaml --- r: 266992 b: refs/heads/master c: 92afb28 h: refs/heads/master v: v3
git-mirror · Sep 19, 2011 · c2ca964 · c2ca964
1 parent b47aebd
commit c2ca964
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Showing 3 changed files with 21 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 39a58439d6006c48941511276c0041f56352c529
+refs/heads/master: 92afb286d744511f51a05f8acb6c111d05737617
diff --git a/trunk/drivers/base/regmap/regcache.c b/trunk/drivers/base/regmap/regcache.c
@@ -240,6 +240,24 @@ int regcache_sync(struct regmap *map)
 }
 EXPORT_SYMBOL_GPL(regcache_sync);
 
+/**
+ * regcache_cache_only: Put a register map into cache only mode
+ *
+ * @map: map to configure
+ * @cache_only: flag if changes should be written to the hardware
+ *
+ * When a register map is marked as cache only writes to the register
+ * map API will only update the register cache, they will not cause
+ * any hardware changes.  This is useful for allowing portions of
+ * drivers to act as though the device were functioning as normal when
+ * it is disabled for power saving reasons.
+ */
+void regcache_cache_only(struct regmap *map, bool enable)
+{
+	map->cache_only = enable;
+}
+EXPORT_SYMBOL_GPL(regcache_cache_only);
+
 bool regcache_set_val(void *base, unsigned int idx,
 		      unsigned int val, unsigned int word_size)
 {

diff --git a/trunk/include/linux/regmap.h b/trunk/include/linux/regmap.h
@@ -141,4 +141,6 @@ int regmap_update_bits(struct regmap *map, unsigned int reg,
 		       unsigned int mask, unsigned int val);
 
 int regcache_sync(struct regmap *map);
+void regcache_cache_only(struct regmap *map, bool enable);
+
 #endif